參數(shù)資料
型號: HYB25D256160CE-5A
廠商: INFINEON TECHNOLOGIES AG
英文描述: 256 Mbit Double Data Rate SDRAM
中文描述: 256兆雙倍數(shù)據(jù)速率SDRAM
文件頁數(shù): 88/94頁
文件大?。?/td> 3326K
代理商: HYB25D256160CE-5A
HYB25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Timing Diagrams
Data Sheet
89
Rev. 1.6, 2004-12
5.13
Write: DM Operation
Figure 51 shows the timing diagram for DM Operation.
Figure 51
Write DM Operation (Burst Length = 4)
t IH
t WPST
t DQS
L
t IH
t IS
t IH
t IS
t RP
t CL
t CH
t CK
NOP
N
OP
NOP
P
RE
NOP
N
OP
A
C
T
NO
P
NOP
W
rite
COL
n
RA
DI
n
CK
CKE
Command
A10
BA0,
BA
1
DQS
DQ
DM
t WR
t DQSS
Don’t
Car
e
VA
LID
t IH
t IS
t IH
t IS
BA
x
BA
RA
BA
x
*
AL
LB
A
N
K
S
ONE
BANK
DIS
AP
DI
n
=
dat
a
in
for
colu
mn
n.
3
subsequ
ent
el
ement
s
of
dat
a
in
are
ap
plied
in
the
pro
g
rammed
or
der
fo
llowi
ng
DI
n
(th
e
se
co
nd
elemen
tof
the
4
is
ma
sked
).
DI
S
AP
=
Dis
ab
le
Aut
o
Prec
ha
rge.
*
=
Don'
t
car
e
ifA10
is
High
at
th
is
poin
t.
PRE
=
Pre
ch
a
rge;
ACT
=
Ac
tiv
e
;RA
=
Ro
w
ad
dres
s;
BA
=
Ban
kadd
res
s.
NOP
comman
d
s
ar
e
s
hown
for
ea
se
of
illu
st
ration
;ot
her
valid
comman
d
s
may
be
possible
at
th
ese
times.
A0
-A
9,
A
1
1,
A
1
2
t DQSH
t DSH
t DQ
SS
=
min
.
t WP
RES
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